CN210980795U - High-temperature-resistant ceramic sintering furnace - Google Patents

High-temperature-resistant ceramic sintering furnace Download PDF

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Publication number
CN210980795U
CN210980795U CN201922015837.4U CN201922015837U CN210980795U CN 210980795 U CN210980795 U CN 210980795U CN 201922015837 U CN201922015837 U CN 201922015837U CN 210980795 U CN210980795 U CN 210980795U
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China
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box body
outer box
inner box
sintering furnace
heat insulation
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CN201922015837.4U
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Chinese (zh)
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马向阳
马晓红
闫继星
闫继旺
邢宝达
祝绪伟
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Shenyang Hongyang Precision Ceramics Co ltd
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Shenyang Hongyang Precision Ceramics Co ltd
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Abstract

The utility model relates to a ceramic production device, in particular to a high temperature resistant ceramic sintering furnace, one side end face of an outer box body is open, an outer box door is connected on the outer box body through a rotating shaft and can seal the open end face of the outer box body and form sealing, a vacuum exhaust pipe is arranged at the top of the outer box body and is communicated with the inside of the outer box body, the outer box body is a heat insulation board, the inner wall and the outer wall of the outer box body are metal plates, and a water return pipe is uniformly arranged in the outer box body heat insulation board; the inner box includes interior box and interior case door, and interior box main part is the metal sheet for heated board and inner wall and outer wall, and interior box side end face opens, and the interior case door opens terminal surface department and forms sealedly including the box seals through the detachable tool to lock, and interior box is inside treats that sintered ceramics places all around of position and all is equipped with heating resistor, treats that sintered ceramics position department places the built on stilts ceramic member rest stand that sets up. The sintering furnace can effectively heat the ceramic blank and simultaneously avoid rapid heat loss, and the ceramic sintering consistency is good.

Description

High-temperature-resistant ceramic sintering furnace
Technical Field
The utility model relates to a ceramic manufacture equipment, especially high temperature resistant ceramic fritting furnace.
Background
The sintering furnace can be divided into a continuous sintering furnace and an intermittent sintering furnace, wherein the intermittent sintering furnace is mainly used for high-temperature-resistant ceramics, and the furnace performs the working cycle of opening the furnace, feeding a pressed compact into the furnace, sintering and discharging sintered parts from the furnace according to a certain time interval. Its advantages are high sintering temp, low gas consumption, and easy application of vacuum.
Some fritting furnaces of prior art, directly set up heating resistor in vacuum box the inside, heating resistor heat only can be transmitted to waiting to sinter on the pottery through the mode of heat radiation, make heat conduction efficiency low, heating resistor's the mode that sets up also has the problem in addition, because of heating resistor programming rate is very fast, heating resistor one side sets up and can lead to waiting to sinter the pottery and be close to at first the crystallization of heating resistor one side, and keep away from that heating resistor one side crystallization time is slow, it has tiny chap to produce easily to wait to sinter the pottery middle part, influence pottery mechanical properties.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a ceramic sintering furnace avoids quick heat loss simultaneously at effective heating ceramic blank, and the ceramic sintering uniformity is good simultaneously.
In order to achieve the above object, the utility model adopts the following technical scheme:
a high-temperature-resistant ceramic sintering furnace comprises an outer box and an inner box, wherein the outer box comprises an outer box body and an outer box door, one side end face of the outer box body is open, the outer box door is connected to the outer box body through a rotating shaft and can seal the open end face of the outer box body and form sealing, a vacuum exhaust pipe is arranged at the top of the outer box body and is communicated with the inside of the outer box body, the outer box body is a heat insulation board, the inner wall and the outer wall of the outer box body are metal plates, return pipes are uniformly arranged in the heat insulation board of the outer box body, a water inlet pipe for supplying water to the return pipes and a water outlet pipe for draining the return pipes are respectively arranged at the top and the bottom of the outer box body, and a detachable lining plate;
the inner box comprises an inner box body and an inner box door, the main body of the inner box body is a heat insulation plate, the inner wall and the outer wall of the inner box body are metal plates, one side end face of the inner box body is open, the inner box door is sealed at the open end face of the inner box body through a detachable lockset to form sealing, heating resistors are arranged around a ceramic placing position to be sintered inside the inner box body, and a ceramic placing frame arranged in an overhead mode is placed at the ceramic placing position to be sintered;
the inner box outer wall and the outer box inner wall are spaced.
Preferably, the heat insulation board is a heat insulation rock wool board.
Preferably, the outer box door main body is a heat insulation plate.
Preferably, the inner box door main body is a heat insulation plate.
Preferably, the lock is mounted to the outer case adjacent the open end face.
Preferably, the bottom of the inner box has a bracket for separating the bottom surface of the inner box from the bottom surface of the outer box.
Preferably, the lining plate is a stainless steel plate.
Preferably, the water return pipe is arranged inside the outer box body in a plurality of S-shaped folds which are connected in a tail-ending mode.
Use the utility model discloses a beneficial effect is:
the sintering furnace is arranged in the mode of the inner box and the outer box, the heating resistor is arranged in the inner box and arranged around the ceramic piece placement frame in the mode of arranging the heating resistor all around, so that the ceramic to be sintered is uniformly heated all around, the ceramic piece is sintered more quickly, and the surface of a finished ceramic piece is compact. The inner box body and the outer box body form an independent box body, the inner box body keeps warm, and the space between the outer box body and the inner box body can be vacuumized, so that the heat dissipation speed is reduced. A water return system is arranged in the outer box body, so that the temperature of the outer box body is not too high. This sintering furnace stable in structure, and the sintering furnace can arrange two interior boxes simultaneously, box sintering in one of sintering furnace during operation, and the ceramic member of treating the sintering is put to box in another, and box directly pushes away in another is withdrawed from to box in one for the turnover speed accelerates.
Drawings
Fig. 1 is a schematic structural diagram of the high-temperature resistant ceramic sintering furnace of the present invention.
FIG. 2 is the schematic diagram of the arrangement position of the water return pipe in the high temperature resistant ceramic sintering furnace.
The reference numerals include:
10-outer box body, 11-outer box door, 12-rotating shaft, 13-vacuum exhaust pipe, 14-water inlet pipe, 15-water return pipe, 16-water discharge pipe, 17-lining plate, 20-inner box body, 21-inner box door, 22-lock, 23-heating resistor, 24-ceramic piece rest stand, 25-support and 30-backing plate.
Detailed Description
In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.
As shown in fig. 1 and fig. 2, the high temperature resistant ceramic sintering furnace provided in this embodiment includes an outer box and an inner box, wherein the outer box includes an outer box 10 and an outer box door 11, a side end surface of the outer box 10 is open, the outer box door 11 is connected to the outer box 10 through a rotating shaft 12 and can seal the open end surface of the outer box 10 and form a seal, a vacuum pumping pipe 13 is disposed at the top of the outer box 10, the vacuum pumping pipe 13 is communicated with the inside of the outer box 10, the main body of the outer box 10 is a heat insulation board, inner and outer walls of the heat insulation board are metal plates, return pipes 15 are uniformly disposed inside the heat insulation board of the outer box 10, water inlet pipes 14 for supplying water to the return pipes 15 and water discharge pipes 16 for discharging water from the return pipes 15 are respectively disposed at the top and the bottom of the outer box 10, and a; the inner box comprises an inner box body 20 and an inner box door 21, the main body of the inner box body 20 is a heat insulation plate, the inner wall and the outer wall of the inner box body are metal plates, the end face of one side of the inner box body 20 is open, the inner box door 21 is sealed at the open end face of the inner box body 20 through a detachable lockset 22 to form sealing, heating resistors 23 are arranged around a ceramic placement position to be sintered inside the inner box body 20, and a ceramic placement frame 24 which is arranged in an overhead mode is placed at the ceramic placement position to be sintered; the outer wall of the inner box and the inner wall of the outer box are spaced apart, and a support, such as a pad 30, is placed on the bottom of the outer box 10 in this embodiment.
Preferably, the heat-insulation board is a heat-insulation rock wool board, the manufacturing cost is low, the heat-insulation rock wool board can be used repeatedly, the using temperature of the rock wool is lower than 450 ℃, the sintering temperature of the ceramic is lower than 400 ℃, and the rock wool board is applicable.
In order to avoid the water vapor condensation of ceramic sintering, the inner wall iron plate of the inner box body 20 is provided with holes, the rock wool absorbs the water vapor, and the water vapor is rapidly released from the holes after the inner box body 20 is opened.
In this embodiment, the main body of the outer box door 11 is a heat insulation board. The main body of the inner box door 21 is an insulation board. A latch 22 is mounted to the outer case 10 adjacent the open end.
The bottom of the inner casing 20 has a bracket 25 to separate the bottom surface of the inner casing 20 from the bottom surface of the outer casing 10, thereby preventing heat from being directly transferred to the outer casing 10 by contact.
The lining plate 17 is a stainless steel plate to avoid the bracket 25 from scratching the inner bottom surface of the outer box body 10.
The water return pipe 15 is arranged inside the outer box body 10 in a mode of being folded back in a plurality of S shapes in tail connection, the water return pipe is divided in a mode of being connected in multiple ways after passing through the water inlet pipe 14, and the water return pipe 15 can be arranged in five plate bodies of the outer box body 10, so that heat cannot be directly dissipated to the external environment.
The sintering furnace is used by firstly placing the ceramics to be sintered on the ceramic placing rack 24, placing the ceramic placing rack 24 in the inner box body 20, wherein the ceramic placing rack 24 can be placed in the inner box body 20, the ceramic placing rack 24 can be placed in the inner box body 20 in a bottom supporting mode, and closing the inner box door 21. Open outer box door 11, carry interior box 20 to outer box 10 inside, pass through the outside interface connection of interior box 20 with the heating resistor 23 of power supply line in with interior box 20, realize supplying power to heating resistor 23, test heating resistor 23 can supply power and heat, close outer box door 11 after the test finishes, form sealed cavity between interior box 20 and the outer box 10 this moment. Water flow is input from the water inlet pipe 14 through an external water circulation system, the circulating water finally flows out of the water outlet pipe 16 through the water return pipe 15, cooling water circulation is achieved, and finally the heating resistor 23 is powered through a power supply line to implement ceramic sintering. During the sintering process of the ceramics, another inner box is used for placing another group of ceramics to be sintered for standby.
The sintering furnace is arranged in the mode of the inner box and the outer box, the heating resistor 23 is arranged in the inner box, and the heating resistor 23 is arranged around the ceramic piece placing frame 24 in the mode of being arranged around, so that the periphery of ceramic to be sintered is uniformly heated, the ceramic piece is sintered more quickly, and the surface of a finished ceramic piece product is compact. The inner box body 20 and the outer box body 10 form an independent box body, the inner box body 20 keeps warm, and the space between the outer box body 10 and the inner box body 20 can be vacuumized, so that the heat loss speed is reduced. A water return system is arranged in the outer box body 10, so that the temperature of the outer box body 10 is not too high. This sintering furnace stable in structure, and two interior boxes 20 can be arranged simultaneously to the sintering furnace, and box 20 sintering in one of sintering furnace during operation, box 20 puts the ceramic member of treating the sintering in another, and box 20 directly pushes in another withdrawal from of box 20 in one for the turnover speed accelerates.
The foregoing is only a preferred embodiment of the present invention, and many variations can be made in the specific embodiments and applications of the present invention by those skilled in the art without departing from the spirit of the present invention.

Claims (8)

1. A high temperature resistant ceramic fritting furnace which characterized in that: the heat insulation board comprises an outer box and an inner box, wherein the outer box comprises an outer box body and an outer box door, one side end face of the outer box body is open, the outer box door is connected to the outer box body through a rotating shaft and can seal the open end face of the outer box body to form sealing, a vacuum exhaust pipe is arranged at the top of the outer box body and is communicated with the inside of the outer box body, the outer box body is a heat insulation board, the inner wall and the outer wall of the outer box body are metal plates, return water pipes are uniformly arranged in the outer box body heat insulation board, the top and the bottom of the outer box body are respectively provided with a water inlet pipe for supplying water to the return water pipes and a water outlet pipe for draining water from the return water pipes;
the inner box comprises an inner box body and an inner box door, the main body of the inner box body is a heat insulation plate, the inner wall and the outer wall of the inner box body are metal plates, one side end face of the inner box body is open, the inner box door is sealed at the open end face of the inner box body through a detachable lockset to form sealing, heating resistors are arranged around a ceramic placing position to be sintered inside the inner box body, and a ceramic placing frame arranged in an overhead mode is placed at the ceramic placing position to be sintered;
the inner box outer wall and the outer box inner wall are spaced.
2. The high temperature resistant ceramic sintering furnace of claim 1, wherein: the heat insulation board is a heat insulation rock wool board.
3. The high temperature resistant ceramic sintering furnace of claim 1, wherein: the outer box door main body is a heat insulation plate.
4. The high temperature resistant ceramic sintering furnace of claim 1, wherein: the inner box door main body is a heat insulation plate.
5. The high temperature resistant ceramic sintering furnace of claim 1, wherein: the tool to lock is installed and is close to open terminal surface department in outer box.
6. The high temperature resistant ceramic sintering furnace of claim 1, wherein: the bottom of the inner box body is provided with a support, so that the bottom surface of the inner box body is separated from the bottom surface of the outer box body.
7. The high temperature resistant ceramic sintering furnace of claim 1, wherein: the lining plate is a stainless steel plate.
8. The high temperature resistant ceramic sintering furnace of claim 1, wherein: the water return pipe is arranged in the outer box body in a mode that a plurality of S-shaped folds are connected in a tail mode.
CN201922015837.4U 2019-11-20 2019-11-20 High-temperature-resistant ceramic sintering furnace Active CN210980795U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922015837.4U CN210980795U (en) 2019-11-20 2019-11-20 High-temperature-resistant ceramic sintering furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922015837.4U CN210980795U (en) 2019-11-20 2019-11-20 High-temperature-resistant ceramic sintering furnace

Publications (1)

Publication Number Publication Date
CN210980795U true CN210980795U (en) 2020-07-10

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CN201922015837.4U Active CN210980795U (en) 2019-11-20 2019-11-20 High-temperature-resistant ceramic sintering furnace

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CN (1) CN210980795U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112153764A (en) * 2020-09-28 2020-12-29 中国农业大学 Rapid heating method for preparing ceramic material
CN112212695A (en) * 2020-11-04 2021-01-12 江苏恒祥宇新材料有限公司 Calcination equipment for ceramic processing
CN113357912A (en) * 2021-06-16 2021-09-07 任和炳 Ceramic vacuum sintering equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112153764A (en) * 2020-09-28 2020-12-29 中国农业大学 Rapid heating method for preparing ceramic material
CN112212695A (en) * 2020-11-04 2021-01-12 江苏恒祥宇新材料有限公司 Calcination equipment for ceramic processing
CN113357912A (en) * 2021-06-16 2021-09-07 任和炳 Ceramic vacuum sintering equipment

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